Certainly they realized, that too many recent visits on their site (after the map was embedded by Global Voices) and especially of the contanimation map, would rise questions about the further statistics up to 2011 - there should be provided an adequate interactive map, to show the development of the contanimation chiffres all over the affected regions in Europe from 1986 up to 2011.

March082011

The remnants of nuclear reactors nearly two billion years old were found in the 1970s in Gabon, Africa. These reactors are thought to have occurred naturally. No natural reactors exist today, as the relative density of fissile uranium has now decayed below that needed for a sustainable reaction.
The image above is Fossil Reactor 15, located in Oklo, Gabon. Uranium oxide remains are visible as the yellowish rock.